Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ125 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 33 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder handles heavy workloads with ease. The hard-anodized aluminum barrel keeps the total length shorter than a same-bore ISO 15552 unit, saving valuable machine space. A G1/2 port feeds the 32 mm rod, yielding a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
The external adjuster allows you to shorten the extend stroke on-site by up to 100 mm, giving a usable forward range of 100 to 200 mm without swapping the cylinder. The retract end remains fixed. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors; you would need the -S variant for position detection. Furthermore, the adjustable stop only sets the end position—it does not hold the load. For vertical load holding on air loss, you must add an external rod lock or pilot-operated check valve, as the 33 mm air cushions only decelerate the piston near the ends.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 33 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100 Is Used
Heavy Pallet Forming
Crushes and compacts large packaging materials with 8590 N of push at 0.7 MPa, using the 100 mm adjuster to dial in the exact compression height on-site.
Press Fit Station
Seats heavy bearings into cast housings by fine-tuning the extend stroke down to 100 mm, ensuring precise insertion depth without reprogramming the machine.
Bulk Goods Diverting
Pushes heavy pallets across a transfer bed, relying on the compact JIS profile to fit within tight conveyor framework clearances.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100 the Right Cylinder?
When sizing this unit, the 125 mm bore sits at the top edge of the range, offering a massive 1251 kgf theoretical max at 1.0 MPa. If your application only needs around 3927 N of push at 0.5 MPa, stepping down to the 100 mm bore saves space and air. The 100 mm adjuster window is ideal for machines that need on-site end-position tuning across multiple stroke variants, letting you standardize on one spare cylinder for several slightly different tasks. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because this is a non-magnetized SKU, it cannot take sensors; choose an -S model if you need CMSE or DMSE switches. For any stroke length over 300 mm, always use a guide rail to prevent side-load damage to the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100 FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it delivers 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, handles speeds of 30-500 mm/s, and uses a G1/2 port.
The nominal 200 mm extend stroke is the maximum. An external stop screw lets you shorten the forward stroke on-site by up to 100 mm, giving a usable extend range of 100 to 200 mm. The retract end is fixed, and this stop only sets the end position—it does not lock the load.
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